Using this product is easy. First, take out the 5 core mecha from the set. You can start by combining them to form the 10.2 - inch Gokai Oh. Just follow the natural connection points on the mecha. If you have other robos from the Robo Universe line, try combining them with the core mecha to make your own combos. When playing with the mecha, be gentle to avoid breaking any parts. If you notice any dust on the mecha, use a soft, dry cloth to wipe it clean. Store the mecha in a dry place away from direct sunlight to keep them in good condition.